14.0.0.RC5-14.0.0 upgrade failed

I just tried to apply the 14.0.0.RC5 - 14.0.0 upgrade and for the last 40 minutes my site just says "Site is temporarily unavailable due to scheduled maintenance, please try again in a minute."

I checked the upgrade log which says this

--------- 2025-04-09T13:39:04+00:00
14.0.0.RC5-14.0.0 upgrade will be applied
Files permissions are ok and can be overwritten
Files copying successfully completed
Deprecated files were successfully deleted or there is no files to delete
System files hash was successfully updated
System SQL script was successfully executed
The following languages will be affected for system:
 - No languages will be affected
System after update custom script was successfully executed

But the sys_db.log says this

  Account ID: 1
Apr 09 13:41:17 [0] CRON Database query error
  Error: MySQL server has gone away
  Query: SELECT `version` FROM `sys_modules` WHERE `name` = 'system'

When I run the SQL above against my database using PHPMyAdmin it returns "14.0.0"

I am getting the following CHRON email every minute: "Site is temporarily unavailable due to scheduled maintenance, please try again in a minute."

I have also tried going into the /studio URL but it has the same "temporarily unavailable" message.

Any ideas on how to get my site up and running again? @Alex T⚜️ @Alexey @LeonidS @Andrey Yasko

RESOLVED UPDATE: For some reason the .bx_maintenance file in my site root folder was not deleted. I finally found this by digging into the /inc/utils.inc.php file.

Thanks!